E6750 & Gigabyte P35C-DS3R Overclocking Thread

[shadd]

Thanks for the speedy reply mate.

I have version 4.33 of speedfan, 0.96 of coretemp and TAT V2.05

Yeh for it to run at 4-4-4-12 it says 2.1v but my orthos fails if i dont have +.3 at 3.6 oc unless i down the timings to 5-5-5-15 (much difference?).

Regards

 

[mrfatboy]

You might need to up the (g)mch +.1v like I did to pass orthos. I'm not sure what is better --- upping the (g)mch or the vdimm?

For some of your temps to be off by 15C you have to be using old software. Not sure what to tell you besides that.

 

[shadd]

Tryed bumping the (g)mch but failed when i loaded into windows so iv just changed the ram timings to 5-5-5-15 and lower the voltage to +.2v just to be on the safe side, speedfan is reading 2.06v which is ok. Lost 100 points on 3d mark though but still getting 14.8 seconds on superpi.

Going to run orthos now for a few hours see if its stable.

Thanks for the advice.

 

[chogster]

Hi guys, been browsing this thread now for the past month & seem to have a little issue of my own.

Basically, I can only clock my OCZ XTC Platinum ram when it has warmed up!????
Following this thread I've managed to get my FSB up to 450 giving me a stable 3.6GHZ & DDR900 memory speed with no probs using Orthos! All fine and dandy, until, I switch off my computer for an hour or 2 then attempts to boot - computer gets to bios screen and freezes @ memory text then reboots at stock settings.

I sussed out that any memory speed over 800MHZ when the computer is cold is a no-go!!
Tried memory voltages from +.3 to +.5v & timings from 4-4-4-12 (also no-go when cold & @800MHZ), 4-4-4-15 & 5-5-5-15, also tried different memory slots! +.5v seems to do the trick but makes my system unstable when it has warmed up! I've read forums where people are getting OCZ XTC ram upto 950MHZ+ easily!

Tried CIA2 with memory @ 780MHZ, gets through bios screen & starts to load windows only to fail due to CIA2 probably kicking in & raising memory speed.

I've run a microsoft memory test in bios with no failures. Thinking of purchasing some Crucial Ballistixs like fatboys but also thinking that this ram should perform a lot better than it seems to be doing!

The only overclock i can really sustain is FSB @ 400 giving me 3.2GHZ which isn't bad but I'd like a little more along with the rest of you!

Also tried all available bios.

Thanks in advance for any help!

 

[mrfatboy]

Welcome to the forum

I have read several threads from people that have the OCZ warming problem. I think it's just a product of the ram. OCZ can be flakey with this board from what I have read.

I suggest you don't turn off your computer once you hit 3.6 or get different ram :laugh:

24/7 is the only way to go!

 

[chogster]

Thanx Mrfatboy,

glad to hear i'm not the only one with this problem, thought it was a little strange!

I did consider 24/7 option but what about hibernate doesn't that keep the ram powered up?

I do some trial & research & if all else fails purchase some Crucial Ballistix or Corsair!

Thanx again!

 

[SniperDaws]

Hmmmm there seems to be new Rev 2.1 of our motherboards.

i wonder if it fixes any of the issue's.

 

[Stewysb119]

So I am new to the forums and new to overclocking in general.

I'm running the 6750 on the DS3R Mobo.
SuperTalent T800UX2GC4 DDR2 800 @ 4-4-3-8 2.2V

I started a mild overclock to 3.0 leaving the memory at 800.
I ran Orthos on CPU only and it passes at 2 hours or so.
Added the memory in blend and failed in less that 3 minutes.
I put the CPU back to stock speeds and ran memtest. Once again it failed on the second test. My gut tells me the memory is done. Switched slots on the mobo, still no dice. I even set the timings back to 5-5-5-15.

I updated from the F2 Bios, to the F9 bios, and now the memory timings won't even save in the bios. CPUz reads them at 5-5-5-15. The computer powers on, shuts off, truns on, shuts off, and then posts. This motherboard is starting to make me mad.

Anyway I ran a raid on WoW last night with no issues. The computer seems to be running fine.

I went ahead and ordered some OCZ Reaper 800, just because I wanted to. Hopefully that will solve the problems.

What am I doing wrong? Am I making a noob mistake?

Any help would be great.

 

[mrfatboy]

I have another sad story about this motherboard. I just built a new rig for a friend. The same one I have but with a Q6600 and Vista 64.

I got everything running then I went to adjust the bios for OC. Reboot & BAM!!!!!

Won't reboot! no power, no fans, no lights, nada, nothing, zip!


I removed battery, shorted cmos, still nothing.

This was a Rev 1.1 board that we just bought a fry's. Something is seriously wrong with this board and Gigabytes quality control.

If anybody has any ideas please let me know

 

[DWells55]

So I went back in to the BIOS and locked my PCIe bus at 100MHz. While I was there I decided to kick the FSB up to 433MHz and therefore the ram to 866MHz. I left the CPU voltage at the stock 1.35v. Booting into Windows worked for a bout a second until it hit the desktop, my speakers made a cracking noise, and then it went blank and rebooted. Is my voltage the problem here? A little bit of instability wouldn't have surprised me, but going from a 3.2 GHz 20 hour Orthos stable setup to 3.46GHz and no longer being able to get to Windows didn't see right to me. Is there a bigger problem?

By the way, what are you guys getting for temps using Core Temp 0.96? I'm idling around 36C to 38C and 56C is the max, even after all that time in Orthos it never went higher. However, I see people talking about their overclocked E6750s at like 40C max. Am I doing something wrong here? I mean the system is 100% stable at 3.2GHz (well, I assume so as it passed 2 hours of Memtest and 20 of Orthos), so I've left it there.

EDIT: Worth noting, the BIOS is set for 1.35v, but CPU-Z reports 1.312v idle and 1.296v under load.

 

[Markfw]

See sig. 70c full load on XP90 is the only down side, I need a better cooler some day, @ 1.328 vcore (1.425 or better set in bios, I can't remember how much more)

 

[DWells55]

Hmm, appears the shutdown during Windows booting corrupted my user profile, as logon and logoff sounds would no longer play even after several reboots and resetting the system sound scheme. Only way I could fix it was with System Restore. Is this normal? I'm starting to get a bit nervous.

 

[biltong]

Originally posted by: Stewysb119
So I am new to the forums and new to overclocking in general.

I'm running the 6750 on the DS3R Mobo.
SuperTalent T800UX2GC4 DDR2 800 @ 4-4-3-8 2.2V

I started a mild overclock to 3.0 leaving the memory at 800.
I ran Orthos on CPU only and it passes at 2 hours or so.
Added the memory in blend and failed in less that 3 minutes.
I put the CPU back to stock speeds and ran memtest. Once again it failed on the second test. My gut tells me the memory is done. Switched slots on the mobo, still no dice. I even set the timings back to 5-5-5-15.

I updated from the F2 Bios, to the F9 bios, and now the memory timings won't even save in the bios. CPUz reads them at 5-5-5-15. The computer powers on, shuts off, truns on, shuts off, and then posts. This motherboard is starting to make me mad.

Anyway I ran a raid on WoW last night with no issues. The computer seems to be running fine.

I went ahead and ordered some OCZ Reaper 800, just because I wanted to. Hopefully that will solve the problems.

What am I doing wrong? Am I making a noob mistake?

Any help would be great.

Stewysb119 - Can you supply a bit more info ? I've had plenty of memory problems in the past, but I've now got everything stable.

You say you overclocked to 3.0 but left the memory at 800. I don't think this is possible with this board, at least not if you've left the CPU multiplier at 8. With the CPU multiplier at 8, your FSB would be set to 375 to get 3.0 GHz. Since you can only set the Mem multiplier to 2.0, 2.4, 3.0......your memory would be clocked at 750MHz or 900MHz or 1125MHz......

Can you let us know what settings you have for:

CPU Clock Ratio
System Mem Multiplier
System Voltage Control
DDR2/DDR3 Overvoltage Control
CPU Voltage Control

That would help in figuring out what the problem is. Of course, you could be right and you might have faulty memory

 

[biltong]

Originally posted by: DWells55
So I went back in to the BIOS and locked my PCIe bus at 100MHz. While I was there I decided to kick the FSB up to 433MHz and therefore the ram to 866MHz. I left the CPU voltage at the stock 1.35v. Booting into Windows worked for a bout a second until it hit the desktop, my speakers made a cracking noise, and then it went blank and rebooted. Is my voltage the problem here? A little bit of instability wouldn't have surprised me, but going from a 3.2 GHz 20 hour Orthos stable setup to 3.46GHz and no longer being able to get to Windows didn't see right to me. Is there a bigger problem?

By the way, what are you guys getting for temps using Core Temp 0.96? I'm idling around 36C to 38C and 56C is the max, even after all that time in Orthos it never went higher. However, I see people talking about their overclocked E6750s at like 40C max. Am I doing something wrong here? I mean the system is 100% stable at 3.2GHz (well, I assume so as it passed 2 hours of Memtest and 20 of Orthos), so I've left it there.

EDIT: Worth noting, the BIOS is set for 1.35v, but CPU-Z reports 1.312v idle and 1.296v under load.

I'm guessing it is the VCore......My CPU is pretty voltage hungry. I need 1.43125V to get to 3.4GHz and 1.48750V to get to 3.552GHz (stable). But even with my CPU, I only need stock VCore for 3.2GHz.

The other possibility is the RAM, although you're not overclocking the RAM that much.

I'd try raising the VCore a few steps first. Failing that, you could loosen your RAM timings e.g. to 5-5-5-15 and see if that makes a difference.

Your temperatures don't seem too excessive. What cooler are you using ? I'm using an AC7 Pro and my idle temp (at 3.5GHz) is about 32C and at load about 55C. But the ambient temperature is pretty cool here at the moment. Some people here are using pretty big coolers e.g. Tuniq Tower, so they'll be getting lower temps.

 

[DWells55]

Freezer 7 Pro here as well. It was only like $15 combo'd with my E6750 at NewEgg. I didn't do anything for the speed of it, it's just plugged into the mobo header and the BIOS set to defaults for fan speed. I'm considering a decent fan controller as this PC still has a quiet but manageable hum that I fear will be much louder in my tiny dorm room once I move back in. It's in a Cooler Master RC-690 with the stock three 120mm fans running. It does concern me a bit that your temps at 3.5GHz are the same as mine at 3.2. I had some trouble with one of the pins being jammed when I installed it so I had to slightly unseat a couple pins before I could get it installed properly so I'm concerned the thermal paste may have been messed up. However, it's still a very new system and hasn't been running long enough for the thermal paste to be fully effective. It's also possible the fan will automatically spin faster if the temps go up.

My CPU is running completely stable at the default voltage at 3.2GHz just like yours. I guess that's why this reboot freaked me out so much, going from 20 hours Orthos stable to can't even boot Windows with such a modest adjustment scared me (like I said, I'm new to this). I think I'll try pushing the VCore up to 1.4v and seeing if I can boot at 800 x 425 (3.4 GHz). I really doubt the RAM is an issue, I mean this is high-end 4-4-4-12 @ 2.1v rated XMS2. I think I should be able to manage at least 850MHz out of it without loosening the timings. Worst comes to worst, I'll loosen it to 5-5-5-15 and try again.

Thanks for the encouragement though

Oh, and as a side note about the corrupted profile thing, that kinda taught me a lesson. From now on, System Restore points get created before any tweaking.

 

[biltong]

DWells55@ - whats your ambient temperature ? that could make a big difference. The room my PC is in is probably about 18C at the moment (must get a thermometer sometime).

Otherwise, you could try replacing the thermal paste. I tried a few and got the best results with AC MX-2.

Also, I always keep an image of my C: drive using True Image 10 (I'm been burned in the past relying on System Restore. Depends whats messed up. I found that sometimes it works, sometimes it doesn't). With True Image, You can schedule it to back up at regular intervals and its a breeze to restore from the image. My C: drive is currently 20GB and it takes about 12 minutes to create an image and roughly the same if you need to restore.

 

[Stewysb119]

Ok so I got the new memory yesterday. OCZ Reaper DDR2 800.

It took a couple tries and shifting around to get them to post, but after a pulling of the power cable, it posted great.

I set the Ram timings at 4-4-4-15 at 2.1v (+0.2), and ram Memtest. It failed on test 7, but I said, "What the hell; at least it wasn't on test 2." I really don't care for memtest.

I booted into Widows, checked voltages on Speedfan (2.13v for RAM and 1.33v for the cpu), and temps on speed fan. Everything was good at idle. I ran Orthos in Blend on stock speeds and got no errors after 3 hours. 48 degrees Celcius was the high on the cpu (Yes I did the +15 degree adjustment)

I restarted and began my overclock. (I originally adjusted the cpu voltage to 1.39675 (?) to get my 1.33-1.36v on speedfan) Stupid vdroop!!!

I adjusted the cpu to 3.2GHz (8x 400), leaving the memory at 800 MHz and the timings at 4-4-4-15.

It was stable on Orthos in Blend for another 3 hours. The temps on speedfan were 32 idle and 52-55 tops at load (the temps were highest toward test 9-11 on Orthos).


Does everything look ok??? Should I push it anymore??? I'm running a Zalman 9700 HSF (100% speed) in a Centurion 5 case with an 80mm and 120mm intake and a really loud (but adjustable) Thermaltake 120mm blowing it all out of the back. This thing will literally suck in and hold a sheet of paper on the front of the case.

Thanks for all the help.

 

[DWells55]

Originally posted by: biltong
DWells55@ - whats your ambient temperature ? that could make a big difference. The room my PC is in is probably about 18C at the moment (must get a thermometer sometime).

Otherwise, you could try replacing the thermal paste. I tried a few and got the best results with AC MX-2.

Also, I always keep an image of my C: drive using True Image 10 (I'm been burned in the past relying on System Restore. Depends whats messed up. I found that sometimes it works, sometimes it doesn't). With True Image, You can schedule it to back up at regular intervals and its a breeze to restore from the image. My C: drive is currently 20GB and it takes about 12 minutes to create an image and roughly the same if you need to restore.

The thermostat for the house is at 68 Fahrenheit, but I've always found it to be a couple degrees warmer up in my room, so I'd say it's 21 Celsius in here. The PC is running 24/7 and it's a small room, so I suppose that could bring ambient temps up a bit.

Regarding the thermal paste, it's supposedly MX-2 pre-applied on there. I honestly don't trust myself to do a better job than the first time either. The darn pins on mine had a habit of getting stuck in themselves so that's what threw off the first install.

Full drive mirroring might be an option. I do have a 500GB drive and it's probably not going to be filled any time soon. Thanks for the suggestion, it hadn't really occurred to me. Once I get OS X running on this rig I'll be using Time Machine for sure.

 

[VirtualLarry]

Originally posted by: Stewysb119
I set the Ram timings at 4-4-4-15 at 2.1v (+0.2), and ram Memtest. It failed on test 7, but I said, "What the hell; at least it wasn't on test 2." I really don't care for memtest.

Well, you should care. Somethings not right, and you will corrupt your Windows eventually, if your RAM is flaky.

 

[mrfatboy]

Originally posted by: Stewysb119
Ok so I got the new memory yesterday. OCZ Reaper DDR2 800.

It took a couple tries and shifting around to get them to post, but after a pulling of the power cable, it posted great.

I set the Ram timings at 4-4-4-15 at 2.1v (+0.2), and ram Memtest. It failed on test 7, but I said, "What the hell; at least it wasn't on test 2." I really don't care for memtest.

I booted into Widows, checked voltages on Speedfan (2.13v for RAM and 1.33v for the cpu), and temps on speed fan. Everything was good at idle. I ran Orthos in Blend on stock speeds and got no errors after 3 hours. 48 degrees Celcius was the high on the cpu (Yes I did the +15 degree adjustment)

I restarted and began my overclock. (I originally adjusted the cpu voltage to 1.39675 (?) to get my 1.33-1.36v on speedfan) Stupid vdroop!!!

I adjusted the cpu to 3.2GHz (8x 400), leaving the memory at 800 MHz and the timings at 4-4-4-15.

It was stable on Orthos in Blend for another 3 hours. The temps on speedfan were 32 idle and 52-55 tops at load (the temps were highest toward test 9-11 on Orthos).


Does everything look ok??? Should I push it anymore??? I'm running a Zalman 9700 HSF (100% speed) in a Centurion 5 case with an 80mm and 120mm intake and a really loud (but adjustable) Thermaltake 120mm blowing it all out of the back. This thing will literally suck in and hold a sheet of paper on the front of the case.

Thanks for all the help.

You need to run orthos at least 12 hours to be reasonably sure, IMHO. I was testing a Q6600 last night and it failed at 12hrs running 3.6.

3 hour testing is nothing.

 

[biltong]

DWells55@ - understand your reluctance to mess about with re-applying the thermal paste

I had several goes before I got it right. I'm not sure if the AC7 Pro has MX-1 or MX-2 pre-applied. Some sites reckon MX-1 and some sites reckon MX-2. The MX-2 stuff is definitely better than MX-1

I tried AS 5, and the Zalman stuff and MX-2. Not much difference to be honest, but the MX-2 stuff definitely had a slight edge and it doesn't need curing. I found I had to apply a very thin layer to both the CPU and the base of the cooler, but I think thats because my AC7 Pro doesn't make ideal contact with the CPU (ideally, would probably need to lap the HS base and maybe the CPU, but thats way past me ). Easiest way to apply was using the clingfilm around the finger method.....

As long as your temps remain below 60C when loaded, you should be OK IMHO.......I'd leave it as it is unless you really want to lower those temps and you're prepared to spend a bit of time messing about. You might shave a couple of degrees off those temps, but your temps are fine as they are.

 

[Capitalizt]

I would like to know why it is necessary to stress test for 12+ hours..

It makes no sense to me. Stress testing is pushing the CPU to the absolute limit. Realistically, no application is ever going to match what Orthos does to your machine, so what does it matter if it fails after 2-3 hours? My overclock fails Orthos in a little over an hour, but I've had no problems in over a year of daily gaming/web surfing with current settings

If you system runs fine when gaming, what is the point of raising voltage (and temperatures) just to pass a ridiculous 12+ hour stress test? The increased voltage/heat from a '12 hour stable' system would seem to do more damage than the hypothetical "instability"..

 

[SilverStream]

Hi! I'm new to the forum. As my first post I'd just like to say that (as a lurker) the environment here seems nice and welcomming. You guys really know your sheets. Now I've been buidling my own computers for a few years now (since I was 13) and I thought now that I've got a fresh rig (specs below) I'd clock the living hell out of it. At least get another 1.2GHz out of the CPU with tight RAM timings. I have a basic knowledge of overclocking (FSB, Core clock, etc...) and I've got the tools (mem test, CPU-Z, Orthos, etc...) the only thing missing now is the knowledge.

I've been following this topic for a couple of weeks and have read a good bit of it, all the info fairly helpful but not ultimately helpful. I'm not entirely sure on the BIOS revision I should be using (BIOS is still unflashed out of the box). Any helpful comments are entirely welcome.

Thanks!

SilverStream

 

[VirtualLarry]

Originally posted by: Capitalizt
I would like to know why it is necessary to stress test for 12+ hours..

It makes no sense to me. Stress testing is pushing the CPU to the absolute limit. Realistically, no application is ever going to match what Orthos does to your machine, so what does it matter if it fails after 2-3 hours? My overclock fails Orthos in a little over an hour, but I've had no problems in over a year of daily gaming/web surfing with current settings

If you system runs fine when gaming, what is the point of raising voltage (and temperatures) just to pass a ridiculous 12+ hour stress test? The increased voltage/heat from a '12 hour stable' system would seem to do more damage than the hypothetical "instability"..

It depends on whether or not you care if your system is stable - whether or not it crashes or subtly errors out from what it was doing.

If you run distributed computing programs, many of them stress the system as well, or even more than Prime95 (like F@H). If you plan to DC, you MUST be 24hr Prime95 stable, or you may be returning invalid results to the project. (Not all software has internal consistency checks like Prime95 does. Instead, they just calculate and send errors back.)

You, obviously, don't mind using an unstable system.

 

[SilverStream]

*BUMB*?